Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Semiconductive polymer composition

A technology of polymers and compositions, applied in the direction of power cables, circuits, and power cables with shielding layers/conductive layers, which can solve problems such as defects in shielding and joints, application of pressure, and generation of air pressure

Active Publication Date: 2020-09-04
BOREALIS AG
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In use, volatile peroxide decomposition products formed in the cable during the crosslinking step create air pressure and thus lead to defects in shielding and joints
For example, when the cable core is fitted with metallic barriers, gaseous products exert pressure, especially on splices and ends, and system failures may occur

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Semiconductive polymer composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-2 and comparative Embodiment 1

[0176] Inventive Examples 1-2 and Comparative Example 1: Semiconductive polymer compositions of the present invention and comparative semiconductive polymer compositions.

[0177] EBA 17wt% is an ethylene copolymer with 17wt% butyl acrylate comonomer and is produced in a high pressure free radical process. MFR 2 7g / 10min, density 926kg / m 3 .

[0178] 60.2 wt% conventional ethylene butyl acrylate (EBA) copolymer,

[0179] Produced in a high-pressure process via free-radical polymerization and has the following properties: MFR 2 7g / 10min (ISO1133, load 2.16, 190°C), butyl acrylate (BA) comonomer content is 17wt%, density is 926kg / m 3 (ASTMD792), feed together with

[0180] 0.8 wt% of commercially available antioxidants

[0181] (polymerized 2,2,4-trimethyl-1,2-dihydroquinoline) TMQ, and

[0182] 39% by weight of commercially available furnace black, the conductive component, was also added.

[0183] The semiconductive polymer composition is compounded by methods known to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
particle sizeaaaaaaaaaa
oil absorption valueaaaaaaaaaa
Login to View More

Abstract

The invention relates to a semiconductive polymer composition comprising a polymer component, a conducting component and a crosslinking agent, wherein the polymer component comprises a polar polyethylene and the crosslinking agent comprises an aliphatic mono-or bifunctional peroxide or, alternatively, a monofunctional peroxide containing an aromatic group,and the crosslinking agent is present in an amount which is Z wt%, based on the total amount (100 wt%) of the polymer composition, and Z1 <= Z <= Z2, wherein Z1 is 0.01 and Z2 is 5.0, an article being e.g. a cable, e.g. a power cable, and processes for producing a semiconductive polymer composition and an article; useful in different end applications, such as wire and cable (W&C) applications.

Description

technical field [0001] The present invention relates to a semiconducting polymer composition comprising a polymer component, a conducting component and a crosslinking agent; to an article comprising one or more semiconducting layers obtained from said semiconducting polymer composition, The article may for example be an electrical cable, such as a power cable; relates to a method for producing the semiconductive polymer composition, and a method for producing the article comprising the use of the semiconductive polymer composition. Background technique [0002] In wire and cable (W&C) applications, a typical cable contains at least one conductor surrounded by one or more layers of polymeric material. In power cable applications including medium voltage (MV) applications, high voltage (HV) applications and extra high voltage (EHV) applications, the conductor is composed of several layers comprising an inner semiconducting layer, an insulating layer and an outer semiconducting...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01B3/44H01B9/02
CPCC08K3/04C08K5/14H01B3/441H01B3/447H01B3/448H01B9/027C08L23/0853C08L23/0869C08K5/1345C08L33/08C08L23/04C08L33/10
Inventor F·斯科格曼E·哈特福斯A·斯梅德贝格D·尼尔森
Owner BOREALIS AG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com